Arrangement oe devices in shingle-machines



WM. H. BITZER, OF MUSCATINE, IOWA.

ARRANGEMENT OF DEVICES IN .SHINGLE-MACHINES.

Specification of Letters Patent No. 25,945, dated November 1, 1859.

To all whom 'it may concern.'

Be it known that I, W. H. BITZER, of Muscatine, in the county ofMuscatine and State of Iowa, have invented a new and ImprovedShingle-Machine; and I do hereby declare that the following is a full,clear, and exact description of the same, reference being had to theannexed drawings, making a part of this specification, in which- Figurel, is a side view of my invention. Fig. 2, is a horizontal section ofthe same, taken in the line Fig. l. Fig. 3, is a detached view of thebolt carriage and its platform.

Similar letters of reference indicate corresponding parts in the severalfigures.

This invention relates to an improvement in that class of shinglemachines in which the shingles are cut in taper form from the bolt by acircular saw and at the same time planed at one side.

To enable those skilled in the art to fully understand and construct myinvention I will proceed to describe it.

A, represents a rectangular framing on one end of which a saw arbor B,is placed, said arbor having a circular saw O, at one end. At the sideof the framing A, and by the side of the saw C, a platform D, issecured, and on this platform a carriage E, is placed and fitted in asuitable guide so that it may move freely back and forth in a rightline. The carriage E, is

operated by a connecting rod F, and crank Gr, the latter being on oneend of a shaft H, placed in the framing A, said shaft being driven by abelt I', from a drum J, on a driving shaft K. On the shaft H, a workingpulley L, and an idle or loose pulley M, is placed, the belt I, beingshifted from one to the other as required by means of a belt shipper N.The saw arbor B, is rotated by a belt O, from the drum J.

P, is a horizontal bar which is placed in the lower part of the framingA, and works on a fulcrum pin a. To t-he opposite end of the bar P, avertical frame Q, is attached, and in this frame a rotary planer R, isfitted, said planer being rotated by a belt b, from the shaft H.

S, is a spring which is secured in the lower part of the framing A, andbears against the bar P, said spring having a tendency to keep theplaner R, in close proximity to the saw C, see Fig. 2.

On the upper surface of the carriage E,

two racks c, c, are attached, one near each side. These racks are eachprovided with alternate long and short teeth d, e, the long teeth of onerack being in line with the short teeth of the opposite one, as shownclearly in Fig. 2. On the carriage E, and between the two racks c, c, abolt T, is placed, and to each side of the bolt a spring or elasticcatch f, is secured. The form of these catches is clearly shown in Fig.3. These catches act as pawls and engage with the racks c, c. In thelower part of the framing A, a lever U, is placed and secured by itsfulcrum pin g. This lever, is connected at one end with a vertical handlever V, which is near a hand lever W, of the belt shipper N. Theopposite end of lever U, bears against the bar P, of the rotary planerframe Q.

The operation is as follows The bolt T, is placed on the carriage E, andthe pawls or catches f, f, are laced into two corresponding sized teethd, or e, e, of the racks c, c. The planer R, is then by actuating leverV, thrown out from the saw C, and the face of the boltis squared orsawed off to be parallel with the plane of rotation of saw C. One of thepawls or catches f is then shifted into a tooth which is out of linewith the tooth in which the other pawl or catch is engaged, that is tosay, if one pawl is fitted ina short tooth e, the other will be fittedin a longer one d. The bolt T, is fed to the saw C, manually or by theoperator, each pawl being moved forward alternately, the distance of alarge and small tooth so that the bolt will be fed obliquely to the saw,the swo sides of the bolt being alternately foremost so that theshingles will be sawed from the bolt in taper form, the butts and thinends being sawed alternately from opposite sides of the bolts. Therotary planer R, smooths ofi:1 the shingles as they are cut from thebolt and the planer is kept to its work by the spring S, the springallowing the planer to yield or give to compensate for the taper form ofthe shingles. The reciprocating movement of the carriage E, may bestopped at any time by shifting the belt I, on the loose or idle pulleyM, and the planer R, may be thrown free from the bolt when desired bysimply actuating the lever U, through the medium of lever V.

I do not claim broadly the employment or use of a circular saw androtary planer for sawing and planing shingles, for they have beenpreviously used for similar purposes;

but

I do claim as new and desire to secure by Letters Patent-n Thearrangement of the frame Q, and planer R, upon the self adjustingswinging bar P, and the combination of the parts thus arranged with thepvoted lever U, and reciprocating carriage F, as and for the purposeherein shown and described.

WM. H. BITZER.

Witnesses H. EHRHART,

S. N. CANDLE.

